TY - JOUR
T1 - 湿式铜基摩擦副局部接触对摩擦因数的影响
AU - Li, Ming Yang
AU - Ma, Biao
AU - Li, He Yan
AU - Zhao, Er Hui
AU - Du, Qiu
AU - Li, Hui Zhu
N1 - Publisher Copyright:
© 2019, Editorial Department of Transaction of Beijing Institute of Technology. All right reserved.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - A friction coefficient calculation model was established for heavy pressure local contact of wet Cu-based friction pairs to study the influence of heat fade, temperature, sliding speed and contact pressure on the mixture lubrication oil film and the change rule of friction coefficient. The model was validated by the friction coefficient measuring experiments of pin-plate. The results show that, under the condition of local high pressure the variation of friction coefficient with temperature can be divided into four stages, oil film leading stage of mixed lubrication, asperity domination stage of mixed lubrication, dry friction stage and heat fade stage. Furthermore, the oil film leading stage will be vanished when the sliding speed is low. Under the dry friction condition, sliding speed has little influence on friction coefficient. However, under the mixed lubrication condition, the friction coefficient decreases with the increase of sliding velocity. When the local pressure is not very heavy, the influence on friction coefficient is very little. While the local contact pressure exceeds 100 MPa, pressure begins to affect the friction coefficient.
AB - A friction coefficient calculation model was established for heavy pressure local contact of wet Cu-based friction pairs to study the influence of heat fade, temperature, sliding speed and contact pressure on the mixture lubrication oil film and the change rule of friction coefficient. The model was validated by the friction coefficient measuring experiments of pin-plate. The results show that, under the condition of local high pressure the variation of friction coefficient with temperature can be divided into four stages, oil film leading stage of mixed lubrication, asperity domination stage of mixed lubrication, dry friction stage and heat fade stage. Furthermore, the oil film leading stage will be vanished when the sliding speed is low. Under the dry friction condition, sliding speed has little influence on friction coefficient. However, under the mixed lubrication condition, the friction coefficient decreases with the increase of sliding velocity. When the local pressure is not very heavy, the influence on friction coefficient is very little. While the local contact pressure exceeds 100 MPa, pressure begins to affect the friction coefficient.
KW - Boundary lubrication
KW - Cu-based friction pairs
KW - Friction coefficient
KW - Local contact
KW - Relative loss rate of oil film
KW - Wet clutch
UR - http://www.scopus.com/inward/record.url?scp=85063280984&partnerID=8YFLogxK
U2 - 10.15918/j.tbit1001-0645.2019.01.009
DO - 10.15918/j.tbit1001-0645.2019.01.009
M3 - 文章
AN - SCOPUS:85063280984
SN - 1001-0645
VL - 39
SP - 53
EP - 57
JO - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
JF - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
IS - 1
ER -